Results 11 to 20 of about 136,603 (185)

Optimizing Nest Survival and Female Survival: Consequences of Nest Site Selection for Canada Geese [PDF]

The Condor, 2007
AbstractWe examined the relationship between attributes of nest sites used by Canada Geese (Branta canadensis) in the Copper River Delta, Alaska, and patterns in nest and female survival. We aimed to determine whether nest site attributes related to nest and female survival differed and whether nest site attributes related to nest survival changed ...
David A. Miller, James B. Grand, Thomas F. Fondell, R. MICHAEL Anthony   +3 more
openaire   +1 more source

Camouflage predicts survival in ground-nesting birds [PDF]

Scientific Reports, 2016
AbstractEvading detection by predators is crucial for survival. Camouflage is therefore a widespread adaptation, but despite substantial research effort our understanding of different camouflage strategies has relied predominantly on artificial systems and on experiments disregarding how camouflage is perceived by predators.
Troscianko, J, Wilson-Aggarwal, J, Stevens, M, Spottiswoode, CN   +3 more
openaire   +3 more sources

Nest survival of the Snowy Plover Charadrius nivosus at Marismas Nacionales, Nayarit

Huitzil, 2022
Breeding habitat loss and nest predation are considered the main causes of Snowy Plover (Charadrius nivosus) populations decline worldwide. We evaluated the effects of season, nest age, distance to nearest vegetation patch, distance to nearest body of ...
Lidiana Esther Ortega-Solis, Daniel Galindo-Espinosa, Elsa Margarita Figueroa-Esquivel, Uki Rosales-Huerta, John Cavitt, Fernando Puebla-Olivares   +5 more
doaj   +1 more source

Drivers of nest survival in the Tawny-bellied Seedeater Sporophila hypoxantha (Aves: Thraupidae): time-specific factors are more related to success than ecological variables

Anais da Academia Brasileira de Ciências, 2021
Tawny-bellied Seedeater (Sporophila hypoxantha) is an endangered (in Brazil) grassland dependent species, whose breeding success remains poorly known hampering conservation measures on its breeding grounds.
ISMAEL FRANZ, CARLA S. FONTANA
doaj   +1 more source

Egg crypsis in a ground‐nesting shorebird influences nest survival [PDF]

Ecosphere, 2013
Coloration of exposed eggs of ground‐nesting birds is thought to reduce predation, with camouflaged eggs that more closely match the area around the nest having greater survival. We tested this hypothesis using digital photographs of 374 Mountain Plover (Charadrius montanus) nests and the substrate surrounding each nest to produce covariates in nest ...
Skrade, Paul, Dinsmore, Stephen
openaire   +2 more sources

Tide and habitat features affect salt marsh songbird nest survival in northeast Florida, USA

Endangered Species Research, 2020
Tidal salt marshes face numerous pressures that threaten their ecological integrity, and many salt marsh vertebrates have exhibited declines concomitant with the degradation of salt marsh habitats.
Cox, WA, Schwarzer, AC, Tornwall, B, Chicalo, R   +3 more
doaj   +1 more source

Aromatic Plants in Eurasian Blue Tit Nests: The ‘Nest [PDF]

, 2012
The ‘Nest Protection Hypothesis’ suggests that some birds add aromatic plants to their nests to repel or kill ectoparasites. This behavior has been described for several species, including the Eurasian Blue Tit (Cyanistes caeruleus).
Belo, A.D.F., Pires, Bárbara A., Rabaça, João E.   +2 more
core   +1 more source

Nest Success and Hatchling Survival of American Alligators Within Inland Wetlands of East Texas [PDF]

, 2012
Because of liberalization of American alligator (Alligator mississippiensis) harvest management in Texas, estimates of nest success and hatchling survival for inland populations are essential for long-term, sustainable population and harvest management ...
Calkins, Gary, Conway, Warren C., Saalfeld, David   +2 more
core   +2 more sources

Interactive effects between nest microclimate and nest vegetation structure confirm microclimate thresholds for Lesser Prairie-Chicken nest survival [PDF]

, 2016
Citation: Grisham, B. A., Godar, A. J., Boal, C. W., & Haukos, D. A. (2016). Interactive effects between nest microclimate and nest vegetation structure confirm microclimate thresholds for Lesser Prairie-Chicken nest survival.
Alixandra J. Godar, Anderson, Andreev, Bell, Blake A. Grisham, Blomberg, Boal, Burnham, Clint W. Boal, Conover, Copelin, Dahlgren, David A. Haukos, Davis, Dinkins, Dinsmore, Dunn, Fields, Flanders-Wanner, Fritts, Gicklhorn, Grisham, Grisham, Grisham, Grisham, Grisham, Grisham, Hagen, Hagen, Hagen, Haukos, Haukos, Haukos, Hovick, Huber, Johnson, Lautenbach, Martin, Mayer, McDonald, McDonald, Nielsen-Gammon, Patten, Peterson, Piersma, Pitman, Pitman, Powell, Robel, Robinson, Rupp, Saalfield, Schroeder, Snyder, U.S. Fish and Wildlife Service, Weathers, Webb, White, Wolfe, Zar   +59 more
core   +1 more source

A Distribution-Free Nest Survival Model

Biometrics, 1988
In many nest survival studies, nests are not found until after incubation has begun and nests that fail are of unknown age while nests that succeed can be aged afterwards. Typically ornithologists have considered the survival time to be from first encounter and have used the Mayfield method (Mayfield, 1961, Wilson Bulletin 73, 255-261; Mayfield, 1975 ...
Pollock, K.H., Cornelius, W.L.
openaire   +1 more source